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` UNITED `STATES PATENT OFFICE.

ROSWELL S. BROWN AND LEROY S. WINTERS, OF LINCOLN, NEBRASKA, ASSIGNORS OF ONE-FOURTH TO CHARLES L. BAUM, OF SAME PLACE.

WINDOW AND DOOR BUTTON.

SPECIFICATION forming part of Letters Patent No.'236,773, dated January 18, 1881.

Application led October 27,1880. (No model.)

To all lwhom it may concern:

Beit known that we, RoswELL S. BROWN and LEROY S. WINTERs, of` Lincoln, in the county of LancasterV and State of Nebraska, have invented certain new and useful Improvements in Sash-Fasteners; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification, in which- Figure l is a perspective view, showing the formation of our lock and its relation to the sash, and Fig. 2 a vertical section through the line m fr. i

The object we have in view is to provide a simple and efficient device for lookin g window-sashes 5 and to this end our invention consists in the employment of a rocking, rotating, and vertically-yielding latch, formed at one end with an upward and at its opposite end with a downward projection, in combination with its essential adjuncts, all of which will be hereinafter -specifically set forth.

To enable others skilled in the art to avail themselves of the benets of our invention, we will now describe its construction and operation.

A Al designatethe sash, upon or to which may be secured the blocks B B'. .The block Bis provided with two recesses or sockets, a a', and also with the hole d. Upon the block Bl is secured the stop g, having a beveled projection, as seen at c, Fig. 1, beneath which the latch C rests when in a locked position. The latch Gis constructed at one end withthe downward projection b, for entering the recesses in block B, and at its opposite end with the upward projection b', for slipping behind the pro- "40 jection on the stop g, as fully seen in Fig. l.

h designates a headed pin or pivot, which extends through the latch into block B, and k is a spiral spring, thelower end of which is secured at the bottom of the hole d, and encircles the pin, and its upper end to the under side of the head of the pin, thuspermitting a yielding vertical play, and at the same time holds the latch in position. On the under side of the latch O, between its upper projection and thepin, is a slight bevel, s, which enables the downward projection to be released or disengaged from either one or the other recesses a a. It will thus be seen that the latch has a rocking motion, together with its rotatory and vertical motion.

When it becomes necessary to look the sash the thumb is placed upon the upward projection and pressed downward, which relieves ythe downward projection from the recess a,

when the latch is turned until the latter projection falls into recess a', as shown in Fig. 1.

It is of course obvious that if the blocks are dispensed with the recesses and stop are formed in and applied directly to the sash in an appropriate place.

We are well aware that sash have been locked by means of aswinging or rotating latch arranged in about the same relative position in which we have shown ours. We therefore lay no claim, broadly, to such a device; but

What We claim, and desire to secure by Letters Patent, is-

The combination of the block B, secured to the sash A and provided with the recesses a a', block B', secured to the sash A' and provided with the stop g, having the beveled end e, latch O, having the upward and downward projections b b and beveled lower face, s, headed pin h, and spring k, substantially as described, and for the purpose set forth.

In testimony that We claim the foregoing as our own we affix our signatures in presence of two witnesses.

ROSWELL S. BROWN. LEROY S. WINTERS.

Witnesses:

OLIVER P. DAvIs, R. B. GALUsHA. 

